I agree that saying "I love children" is not indicative of type, since none of the type descriptions I am aware of say anything about loving/hating children.
But to me, your problem with self-typing points to one of the "triangle" types.
Three's lose themselves in their activities and thus lose touch with themselves, making typing difficult.
Sixes lose their identity in the "tribe," and their changeability between levels makes typing difficult.
Nines lose their identity in another, and their complacency about things such as self-knowledge makes typing difficult.